Drum washing machine



FIG. 1 is a front, right perspective view of the drum washing machineshowing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof, and,

FIG. 7 is a bottom view thereof.

The ornamental design for a drum washing machine, as shown anddescribed.